The sharing rules feature of vTiger allows you to state the specific information on your website that a user can see. This is one of the core features of vTiger and allows you a better information management for your website.
To configure such sharing rules on your website, you need to first log in as administrator. Locate the Settings icon at the top-right corner of the screen and then click on the CRM Settings option.
Locate the Users & Access Control option and then click on the Sharing Rules feature.
The permissions that you can assign to different functions on your website are:
To edit those, you can simply choose the module that you would like to configure differently and then choose the corresponding rule that you would like to apply for it. A new button will become active just above the form and you need to click on it to apply the change. The button in question is Apply New Sharing Rules.